//package com.example.springdemotest.mapper;
//
//import com.example.springdemotest.User;
//import org.apache.ibatis.annotations.Insert;
//import org.apache.ibatis.annotations.Mapper;
//import org.apache.ibatis.annotations.Select;
//
//@Mapper
//public interface UserMapper {
//
//    @Insert("insert into user values(#{id},#{username},#{password},#{birthday})")
//    int insert_user(User user);
//
//
//    @Select("select * from user where id= #{id}")
//    User select(int id);
//}
